In a 'Feynman Long Division Puzzle' each digit of a long division has been replaced by a dot or the letter A (which stands for a unique digit). None of the dots are the same as the A digit. The goal is to reconstruct the original figures (by any means necessary).

As an example, the original puzzle (first published in the May 1936 by W. F. Cheney, Jr):

has solution:

All care has been taken for these puzzles to be correct in the sense that they have a solution, that the solution is unique, and that the puzzle renders correctly. None of the above are however guaranteed.